Ryuki Matsuura, Shungo Suzuki, Mao Saeki, Tetsuji Ogawa, and Yoichi Matsuyama, Refinement of utterance fluency feature extraction and automated scoring of L2 oral fluency with dialogic features, Proc. The 14th Asia Pacific Signal and Information Processing Association
Annual Summit and Conference (APSIPA ASC), Chiang Mai, Thailand, November. 2022．